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cmdutils: silence unused warnings under --disable-swscale, --disable-swresample

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This patch silences such warnings by placing initializations under a header guard,
see e.g
http://fate.ffmpeg.org/log.cgi?time=20150919095430&log=compile&slot=x86_64-archlinux-gcc-disableswscale,
http://fate.ffmpeg.org/log.cgi?time=20150919095048&log=compile&slot=x86_64-archlinux-gcc-disableswresample
for examples of such warnings.
It also has the benefit of placing library specific #defines next to each other.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-09-19 10:20:26 -04:00 committed by Paul B Mahol
parent 8dc6e92c3d
commit 254c64c574
1 changed files with 6 additions and 3 deletions
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9
cmdutils.c
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@ -533,7 +533,12 @@ int opt_default(void *optctx, const char *opt, const char *arg)
#if CONFIG_AVRESAMPLE
const AVClass *rc = avresample_get_class();
#endif
const AVClass *sc, *swr_class;
#if CONFIG_SWSCALE
const AVClass *sc = sws_get_class();
#endif
#if CONFIG_SWRESAMPLE
const AVClass *swr_class = swr_get_class();
#endif
if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
av_log_set_level(AV_LOG_DEBUG);
@ -557,7 +562,6 @@ int opt_default(void *optctx, const char *opt, const char *arg)
consumed = 1;
}
#if CONFIG_SWSCALE
sc = sws_get_class();
if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
struct SwsContext *sws = sws_alloc_context();
@ -585,7 +589,6 @@ int opt_default(void *optctx, const char *opt, const char *arg)
}
#endif
#if CONFIG_SWRESAMPLE
swr_class = swr_get_class();
if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
struct SwrContext *swr = swr_alloc();